CVE-2021-39630

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In executeRequest of OverlayManagerService.java, there is a possible way to control fabricated overlays from adb shell due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-202768292

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-863

Affected software

No affected versions have been published.

Timeline

Published
Jan 14, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-396315.5In clear_data_dlg_text of strings.xml, there is a possible situation when "Clear storage" functionality sets up the wrong security/privacy eCVE-2021-396327.8In inotify_cb of events.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation oCVE-2021-396335.5In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This could lead to local information disCVE-2021-396347.8In fs/eventpoll.c, there is a possible use after free. This could lead to local escalation of privilege with no additional execution privileCVE-2021-396359.1ims_ex is a vendor system service used to manage VoLTE in unisoc devices，But it does not verify the caller's permissions，so that normal appsCVE-2021-396364.4In do_ipt_get_ctl and do_ipt_set_ctl of ip_tables.c, there is a possible way to leak kernel information due to uninitialized data. This coulCVE-2021-396374.4In CreateDeviceInfo of trusty_remote_provisioning_context.cpp, there is a possible out of bounds read due to a missing bounds check. This coCVE-2021-396386.7In periodic_io_work_func of lwis_periodic_io.c, there is a possible out of bounds write due to a use after free. This could lead to local esCVE-2021-396396.8In TBD of fvp.c, there is a possible way to glitch CPU behavior due to a missing permission check. This could lead to local escalation of prCVE-2021-39645.9elgg is vulnerable to Authorization Bypass Through User-Controlled KeyCVE-2021-396407.8In __dwc3_gadget_ep0_queue of ep0.c, there is a possible out of bounds write due to improper locking. This could lead to local escalation ofCVE-2021-396419.8Product: AndroidVersions: Android kernelAndroid ID: A-126949257References: N/A
CVE-2021-39630: High severity, CVSS 7.8 | Vulnix